Braiding machine



Dec. 8, 1931. F AUTEM 1,834,928

BRAIDING MACHINE Filed July l, 1930 2 Sheets-Sheet l F. UTEM Dec. 8, 1931.

BRAIDING MACHINE Filed July 14, 1930 2 Sheets-Sheet 2 A TTORNEYS.

Patented Dec. 8, 1931 f UNITED sTATEs PATENT oFEIcE FRED AU'IEM, or wYoMIssING, PENNSYLVANIA, AssIGNOR To TEXTILE MACHINE wonxs, or WYoMIssING, PENNSYLVANIA, A ooaronA'rIoN or rENNsYLvANIA IBRAIDING MACHINE Application led July 14,

This invention relatesto high speed braidf ing machines in which two sets o bobbins are' rotated in opposite directions and the yarns of one set are sinuated over and under the bobbins of the other set in timed relationship; and more particularly to means for varying this timed relationship.

In order to remove the defects in the braid occurring at times during its production, it 1o is necessary to reverselyy operate the machine Y andunbraid` thermaterial to the point of defect. This hasy heretofore'been impracticable in the type of high speed machines to which the inventionv relates, because of the breakage ofV the yarns whenever the machinewas reversely operated; such breakage resulting from the, improperly timed relationship existing between the sinuating yarns and the-bobbinsover and under which they pass. Y The primary object of my invention isto provide novel and simple means in a braiding Y machinevof the type mentioned, for establi'shing the properv timing of the sinuating yarns and cooperating parts during reverse machine operation. y The invention comprises the novel elements, features of construction and arrangement of parts in cooperative relationship as fully disclosed bythe following detailed description and accompanying drawings of one embodiment thereof,reference to which will makethe above as well as other `objects and attendant advantages more readily apparent.

In the drawings:

known high speed braiding'machine, certain parts-being omitted and others broken away in order to more clearly show my invention, which is applied thereto. y

Fig. 42 is a central cross-sectional view taken substantially asl indicated by the arrows 2--2 on Fig. 1.

Fig. 8 is an enlarged fragmentary plan viewaof'one of the yarn carriers of the upper look-ing inv the direction ofthe arrow 3 in Fig. 2, but with the carrier advanced 45 degrees from the position shownin said figure,

and more' partie,u-larlyy shows the relative posi- 5 tiens of.asinuatingsthread from one vof the Fig. 1 is a fragmentary' plan view of a` set of bobbins and its surrounding parts,l

1930. semi No. 467,189.

lower set of bobbins, for normal and reverse operatlon ot the machine.

Fig. 4 is a plan sectional view of certainr Y a modified form-ot construction.

Only certain essential parts of a high speed braiding machine have been indicated in the drawings. As well known, such' machines mainly consist of an upper set of bobbins 10,. which are unitedly rotated in one direction, and a lower set 11, rotated in the opposite direction, the threads from the latter .set beingsinuated over and under the bobbins of the upper set during machine operation; and the general construction shown and hereinafter described as preliminary to the setting forth ofmy present invention is well known in the art.

In the present instanceT a thread guide slot 13 is provided for proper actuation of the lower bobbiny threads T, which is formed be.- tween the edges of twov spaced-apart stationary plates 15 and 16. The former being mounted on posts 17 rigidly secured toa base plate 18, and the latter ixedly mounted on ay central support and bearing member' 19, integrally formed on the base plate 18. Thev plate 15'is cut away at its front as indicated at 21, to facilitate the lie-threading of the yarns Tin case of breakage.`

The plate 16 is providedl with the usual concentric raceway 22, for the bobbins 10, and a cam groove-23 for oscillatingthe anchors 24 which are mounted on a revoluble-bearing member 25.v The active ends of anchors 24 alternately connect with notches in a respective bobbincarrier 10a to take it along and permit the passing of the threads T therebetween.

The member 25 is secured to the upper end of a hollow shaft 26 journalled in bearing 19. Shaft 26has a bevel gear 27 fixed to its lower end in mesh with a similar gear 28 on a drive f shaft 29. Gear 28 also Ameshes with a gear 31 which is ixed to a circular plate 32rotatably mounted on, bearing 19'` and carrying kthe lower set ofzbobbinsll. The gears 27 and 31 are of the same diameter so that rotation zury i cof of drive gear 2S moves the upper set of bobbins 10, and the lowe-r set 11 in opposite directions at the same rate of speed.

Y In Fig. 3, A indicates the approximateL proper position of a thread T which moves in one direction, in respect to a carrier that moves, in theY opposite direction during nor-y mal or forward operation of the machine. It

lisin this connection that the present construction' forming` my rir'iv'ention is called for.

It will be apparent that if this relationship remains the same during reverse machine operation, the'carrier of bobbin 10 will obstruct and prevent the passage of thread T along its guide slot 13. Consequently, it -s Vnecessary Y to shift v'threads' Tfree of the carrier, or apabefore reversely proXimately to pogitionr'B. operatingthemachinef 1 To this end, Iliave mounted thread guide *./membe-rs or rods 33,1overgwhichv the threads T pass,on a ring 34, andloosel-y connectedthe latter to plate 32 by providing therein slots 35 v into which extend bolts 36, fixed in'plate 32. In order to hold the-ring 34 in the position *illustrated inv Atlig g.`4'during normal operation ofthe machine, i. e., so that threads T are inftheposition indicated at A in4 Fig. 3, two springs `are vrespectively connected to the rings 34and plate 32, as shown.

If becomes "necessary, to'reversethe operationof the machine for the purpose inentioned, 'the' driveshaft 29 is disconnected'so that the'machine can-'be manually and re-l versely operated by moving the lower set of f-bobbins 11 in the direction indicated by the arrowin Fig.' 4. Handles 39 are provided for this purpose on ring 34. By pulling on these,iring34 will first bel rotated ragainst the actionl ,of springs37`, untilbolts 36 abut at the :opposite ends of the `slots35, during' whichinovement the .guide rods 33 will beV shifted and consequently'threads T placed j in position B in Fig. 3, after which ring 34 and'plate 32 move in unison,'and the move- "f ment of theupper andlower set of bobbins is reversed, -through theygea'rs described,

`while the threadsT freely pass along in their vguide slot 13. v,I lVhenhandles 39 are released, 4 springs 37 willl automatically return the ring '34, rods 33, and-consequently threads'Tlto 1 Y Y f f Y members for said sinuating threads, a mountving for said guiden'iembers secured forrotheir normal position. Y Y

In Figf, I have shown a modified' form of'my invention, the parts corresponding` to those Y' already described being indicated by the saine reference numeralsl having the YeX- ponent a. In this case the Vcarriers 11a Vare 32a, which]` "cooperates l with notches 42 in ring 34a 'to lock plate l7%2afand ring 34a tof gather during operation.l

normal and reverse ymachine Of course, other ways and means can be devised for attaining the invention herein Y Ymore particularly defined in the appended claims.

VIclaim:` Y l. In a braiding machine, the combination with two oppositely revoluble sets of bobbins, and means for sinuating the threads of one set l`over. and Vunderr the bobbins of the other cooperating set in timed relationship; of means fory relatively moving said sinuating threads and the cooperating set of bobbins to vary saidtimedrelationship for reverse operation ofthe machine Y 2. In a braiding machine, the combination,

Vwith two oppositely revoluble sets of bobbins,'and means for sinuating the threads of one set over and under the bobbins i of Vthe other cooperating set in timed'relationship; of means for independently moving said sinuating threads relative to the cooperating set of bobbins to-vary said timed relationship for reverse operation ofthe machine.

3. In a braidinginachine, the combination with two oppositely revoluble sets'of bobbins, and means for sinuating the threads of one setover. and under the bobbins of the other Set in timed relationship; of means for unitedlyshifting the sinuating threads from the one set: of bobbins relativelyto the bobbins 0f the other setto vary the saidtimed relationship for reverse operation ofthe machine. V4. In a braiding machine,-the combination with'two oppositely revoluble sets of bobbins independently -mountedand means for sinuating the threads ofone set of bobbinsoven and unde r.the'-bobbins oftheother set in timed relationship; of guide members for said sinuating threads, and means for varying said timed yrelationship for reverse operation of the machine including a support for said guide members adj ustabl'yV secured to the mountingof one of said sets of bobbins. p 5. In a braidingmachine, the combination with two oppositely revolublesets of bobbins, and means for sinuating the threads `of one set of bobbins over andunder'the bobbins'of the otherset in timed relationship; of guide tation with one of said'sets of bobbins and f adapted to be adjusted to vary said timed re-Y lationship for reverse operation of the machine, and .means for-:retaining the mount'- ing in its normal position. y

6.V In a braiding machine, the combination withtwo opposite revoluble sets ofbobbins,

and meansffor 'sinuating the threads of one s et of bobbins over and under the bobbins of the other-set in timed relationship; of guide members for said sinuating threads, amount'- ing-forsaid guidey members secured for rota'- tion with one' of `said -sets of bobbins and iis adapted to be adjusted relatively thereto to vary said timed relationship for reverse operation of the machine, and a spring for retaining the mounting in its normal position.

i 7. In a braiding machine having two sets of bobbins revolvable in opposite directions and means for sinuously traversing the threads of one set of bobbins over and under the threads of the other set, guide members revolvable in a path intermediate said sets of bobbins for positioning said traversing threads in timed relation to said revolving bobbins, and means operative upon reversal of said bobbin revolutions for rotatively shifting said guide members relatively to vary the timed relation of the traversing threads.

8. In a brading machine having two sets of'bobbins revolvable in opposite directions and means for sinuously traversing the threads of one set of bobbins over and under the threads of the other set, guide members revoluble with one set of bobbins for positioning said traversing threads in timed relation with the other set of bobbins, and means operative upon reversal of said bobbin revolutions for rotatively shifting said guide members relatively to vary the timed relation of their traversing threads.

9. In a braiding machine comprising two oppositely revolvable sets of bobbins, a stationary platform for one of said sets having a circular bobbin carrier runway and an Vendless thread passageway sinuously crossing said runway, a revolvable platform for the other set of bobbins, thread positioning guide members for the latter mounted on said revolvable platform in shiftable rotatable relation thereto and traversed adjacent said sinuous passage way in timed relation to the reversely revolving lirst series of bobbins, and means operated by reversal of said bobbin revolutions for relatively rotating said guide members to differently position their timed relation to the reversely revolving first set of bobbins.

IO. In a braiding machine having two sets of bobbins revolvable in opposite directions and means for sinuously traversing the threads of one set of bobbins over and under the threads of the other set, means for maintaining a timed relation of the threads of one set of bobbins relative to the other set of bobbins7 and means for rotatively shifting one set of bobbins preliminary to reversing the revolutions of both sets whereby the timed relation of the threads of said shifted set are varied with relation to the other set.

In testimony whereof I aiiiX my signature.

FRED AUTEM. 

